Home / 101,982.96-140,697.18-75,189.06

Finding the Fourth Proportional to 101,982.96, 140,697.18 and 75,189.06

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Solution

The fourth proportional to 101,982.96, 140,697.18 and 75,189.06 is: 103,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.96 : 140,697.18 = 75,189.06 : x
  2. Step 2: Convert to fraction form
    101,982.96/140,697.18 = 75,189.06/x
  3. Step 3: Cross multiply
    101,982.96x = 140,697.18 × 75,189.06
  4. Step 4: Simplify right side
    101,982.96x = 10,578,888,708.85
  5. Step 5: Solve for x
    x = 10,578,888,708.85/101,982.96
  6. Step 6: Final answer
    x = 103,731.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.